Spruing assembly

Details Spruing assembly Spruing assembly

1984-02-10

1985-12-17

Woo, Jay H.

Static molds

Dental prosthodontic type

164 35, 164244, 164376, 164DIG4, 249 62, 264221, B22C 702, A61C 1300

Patent

active

045588414

ABSTRACT:
A spruing assembly for receiving investment material in the production of an investment mold for castings by the "lost wax" process which includes a hollow chamber to receive the investment material formed by a base member and an engaging tapered ring. A horizontal feeder bar is contained within the chamber and is supported by hollow sprue means. The feeder bar is open at its top and has a narrow channel for conducting molten wax into the hollow sprue support. The base member includes a centralized sprue base former and support means associated with the former to provide support for the hollow sprue means supporting the feeder bar.

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